20224251043 has 4 divisors (see below), whose sum is σ = 20921639040. Its totient is φ = 19526863048.

The previous prime is 20224251037. The next prime is 20224251053. The reversal of 20224251043 is 34015242202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20224251043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20224250999 and 20224251017.

It is not an unprimeable number, because it can be changed into a prime (20224251013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348693955 + ... + 348694012.

It is an arithmetic number, because the mean of its divisors is an integer number (5230409760).

Almost surely, 2^20224251043 is an apocalyptic number.

20224251043 is a deficient number, since it is larger than the sum of its proper divisors (697387997).

20224251043 is an equidigital number, since it uses as much as digits as its factorization.

20224251043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697387996.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20224251043 its reverse (34015242202), we get a palindrome (54239493245).

The spelling of 20224251043 in words is "twenty billion, two hundred twenty-four million, two hundred fifty-one thousand, forty-three".